•
How often does the thorough check have to be carried out?
•
Do the machine operators have to be notified of the thorough check and do they
need to be instructed accordingly?
b
Define all guidelines for the thorough check.
4.5.1
Test rod check
Overview
The light beam is covered with an opaque test rod (diameter of 30 mm).
When the light beam is covered, the INFO LED on the active unit must light up red.
The test rod check is carried out with an outstretched arm for each light beam and at
multiple positions between the active and passive units.
Important information
DANGER
Hazard due to unexpected starting of the machine
b
Make sure that the dangerous state of the machine is and remains switched off
during the check.
b
Make sure that the outputs of the multiple light beam safety device do not affect
the machine during the check.
DANGER
Hazard due to lack of effectiveness of the protective device
Persons and parts of the body to be protected may not be recognized in case of non-
observance.
Do not operate the machine if the INFO LED lights up green or yellow during the check!
b
If the INFO LED lights up green or yellow during the check – even if only briefly –
work must stop at the machine.
b
In this case, the mounting and electrical installation of the multiple light beam
safety device must be checked by appropriately qualified safety personnel.
Prerequisites
•
The INFO LED lights up green or flashes yellow.
The INFO LED only flashes yellow if the internal restart interlock is configured and
a reset is required.
Approach
1.
Cover a light beam completely.
Hold the test rod with an outstretched arm.
PROJECT PLANNING
4
8024802/2020-07-17 | SICK
O P E R A T I N G I N S T R U C T I O N S | deTem4 LT Muting A/P
41
Subject to change without notice